<template>
  <view  v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!-- 商品信息主体区域 -->
      <view class="goods-info-body">
        <!-- 商品名字 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!-- 收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 运费区域 -->
     <!-- <view class="yf">快递：免运费----{{cart.length}}</view> -->
      <view class="yf">快递：免运费</view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航组件区域 -->
    <view class="goods_nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
    </view>
  </view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from 'vuex'
  export default {
    data() {
      return {
        // 商品详情对象
        goods_info:{},
        options: [{
        			icon: 'shop',
        			text: '店铺'
        		}, {
        			icon: 'cart',
        			text: '购物车',
        			info: 0
        		}],
        	    buttonGroup: [{
        	      text: '加入购物车',
        	      backgroundColor: '#ff0000',
        	      color: '#fff'
        	    },
        	    {
        	      text: '立即购买',
        	      backgroundColor: '#ffa200',
        	      color: '#fff'
        	    }
        	    ]
      };
    },
    computed:{
      ...mapState('m_cart',[]),
      ...mapGetters('m_cart',['total'])
    },
    onLoad(options){
      // console.log(options)
      const goods_id = options.goods_id
      this.getGoodDetail(goods_id)
    },
    methods:{
      ...mapMutations('m_cart',['addToCart']),
      async getGoodDetail(goods_id){
        const {data:res} = await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status!==200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;" ').replace(/webp/g,'jpg')
        this.goods_info = res.message
      },
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>x.pics_big)
        })
      },
      onClick(e){
        // console.log(e)
        if(e.content.text==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      buttonClick(e){
        // console.log(e)
        if(e.content.text==='加入购物车'){
          // 组织商品的信息对象
          // {goods_id,goods_name,goods_price,goods_count,goods_samll_logo,goods_state}
          const goods = {
            goods_id:this.goods_info.goods_id,
            goods_name:this.goods_info.goods_name,
            goods_price:this.goods_info.goods_price,
            goods_count:1,
            goods_samll_logo:this.goods_info.goods_samll_logo,
            goods_state:true
          }
          // 调用addToCart方法
          this.addToCart(goods)
        }
      }
    },
    watch:{
      // total(newVal){
      //   const findResult = this.options.find(x=>x.text==='购物车')
      //   if(findResult){
      //     findResult.info = newVal
      //   }
      // }
      total:{
        handler(newVal){
            const findResult = this.options.find(x=>x.text==='购物车')
            if(findResult){
              findResult.info = newVal
            }
        },
        // immediate属性用来声明次侦听器，是否在页面加载完毕后立即调用
        immediate:true
      }
    }
  }
</script>

<style lang="scss">
  swiper{
    height:750rpx;
    image{
      width:100%;
      height:100%;
    }
  }
  .goods-info-box{
    padding:10px;
    padding-right:0;
    .price{
      color: #c00000;
      font-size: 18px;
      margin:10px 0;
    }
    .goods-info-body{
      display: flex;
      justify-content: space-between;
      .goods-name{
        font-size:13px;
        margin-right:10px;
      }
      .favi{
        width:120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-left:1px solid #efefef;
        color:gray;
      }
    }
    .yf{
      font-size: 12px;
      color: gray;
      margin:10px 0;
    }
  }
  .goods_nav{
    position:fixed;
    bottom:0;
    left:0;
    width:100%;
  }
  .goods-detail-container{
    padding-bottom:50px;
  }
</style>
